Allendale Weather Forecast

    • 44
    • 77

    Breezy

    • 47
    • 77

    Partly Sunny

    • 31
    • 60

    Rain/Snow

    • 24
    • 38

    Rain/Snow

    • 29
    • 46

    Slight Chance Thunderstorms

    • 38
    • 58

    Slight Chance Thunderstorms

Today 15 May Natrona County Lower Elevations

Mostly sunny and breezy. Highs in the lower 70s. West Winds 15 to 25 Mph. Gusts up to 45 Mph in the afternoon.

Tonight 15 May Natrona County Lower Elevations

Clear. Near steady temperature in the mid 40s. Southwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Allendale Temperature Statistics

May Temperature

Casper, Natrona County International Airport (9.9 miles)

  • Lowest 6 May, 2026

    18.6 °F

  • Average May

    52.2 °F

  • Highest 13 May, 2026

    89.1 °F

Climate (2021–Present)

Casper, Natrona County International Airport (9.9 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    61.5 °F
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